A method, system, and storage medium for controlling moisture content of cigarettes during storage

Abstract

The application discloses a kind of moisture content control methods during cigarette storage, comprising: determining the brand of cigarette and obtaining the standard moisture content interval of the brand cigarette;Get the temperature value and humidity value of the cigarette placement environment;Temperature value, humidity value and the maximum value of standard moisture content interval are substituted into first function formula and third function formula respectively, and the first placement duration corresponding to first function formula and the third placement duration corresponding to third function formula are calculated respectively;Take the minimum positive value in first placement duration, second placement duration, third placement duration and fourth placement duration, and the minimum positive value is used as the limit duration of cigarette in placement environment.The application can guide the packaging process to preferentially package the cigarette close to the limit duration.The application also discloses a kind of moisture content control system during cigarette storage and a kind of computer readable storage medium.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing technology, and in particular to a method, system and storage medium for controlling the moisture content of cigarettes during storage. Background Technology

[0002] According to the cigarette manufacturing process, tobacco leaves are rolled into cigarettes by a cigarette rolling machine, and then the cigarettes are packaged into small packs and cartons of cigarettes by a packaging machine. Due to frequent malfunctions of the packaging machine and the need for frequent shutdowns to change packaging materials, the number of cigarettes produced by the rolling machine exceeds the number required by the packaging machine. Therefore, a portion of the cigarettes produced by the rolling machine is temporarily stored in the workshop until the packaging machine is functioning normally, at which point this batch of cigarettes is transported from the workshop to the packaging machine for packaging.

[0003] Generally, cigarettes are inspected and found to have acceptable moisture content (within the standard moisture content range) before being directly conveyed to the packaging machine for packaging. However, after cigarettes have been stored in the workshop for a period of time, their moisture content may exceed the standard range due to factors such as workshop temperature, humidity, and the duration of storage. When the moisture content of cigarettes exceeds the standard, they cannot be directly sent to the packaging machine and must be destroyed. Therefore, cigarettes stored in the workshop need to be re-inspected before packaging, which not only increases labor intensity but also wastes resources. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of excessive moisture content in cigarettes during storage, which necessitates manual re-inspection of moisture content and results in high labor intensity. This invention provides a method, system, and storage medium for controlling the moisture content of cigarettes during storage, reducing the likelihood of excessive moisture content, thereby reducing the number of re-inspections, lowering labor intensity for workers, and minimizing resource waste.

[0005] To address the aforementioned technical problems, embodiments of the present invention disclose a method for controlling the moisture content of cigarettes during storage, comprising:

[0006] Determine the brand of the cigarette and obtain the standard moisture content range for that brand of cigarette;

[0007] Obtain the temperature and humidity values ​​of the environment where the cigarettes are stored;

[0008] Substitute the temperature value, humidity value, and the maximum value of the standard moisture content range into the first function and the third function respectively, and calculate the first placement time corresponding to the first function and the third placement time corresponding to the third function respectively.

[0009] Substitute the temperature value, humidity value, and minimum value of the standard moisture content range into the second function and the fourth function respectively, and calculate the second placement time corresponding to the second function and the fourth placement time corresponding to the fourth function respectively.

[0010] Take the minimum positive value among the first, second, third, and fourth placement times, and use this minimum positive value as the limit duration of the cigarette in the placement environment.

[0011] By adopting the above technical solution, the maximum time that cigarettes can be placed in the environment can be determined. This can guide the packaging process to package the cigarettes in a timely manner within the maximum time limit, reduce the frequency of excessive moisture content in cigarettes, thereby reducing the number of re-inspections and reducing resource waste.

[0012] Optionally, it also includes:

[0013] The system obtains the actual duration of the cigarette in the environment and compares it with the limit duration. An alarm is triggered when the actual duration exceeds the limit duration.

[0014] Using the above technical solution, when the actual placement time exceeds the limit, an alarm will be triggered, which can remind the packaging staff to conduct a manual re-inspection of the cigarettes in a timely manner. Based on the re-inspection results, priority can be given to packaging or discarding the batch of cigarettes.

[0015] Optionally, the first function is:

[0016]

[0017] Among them, W max The maximum value of the standard moisture content range, T is the temperature of the placement environment in °C, RH is the humidity of the placement environment, and t1 is the first placement time in h.

[0018] Alternatively, the second function is:

[0019]

[0020] Among them, W min t1 represents the minimum value of the standard moisture content range, T represents the temperature of the placement environment in °C, RH represents the humidity of the placement environment, and t2 represents the second placement time in h.

[0021] Alternatively, the third function is:

[0022]

[0023] Among them, W maxt3 represents the maximum value of the standard moisture content range, T represents the temperature of the placement environment in °C, RH represents the humidity of the placement environment, and t3 represents the third placement time in hours.

[0024] Alternatively, the fourth function is:

[0025]

[0026] Among them, W min t4 represents the minimum value of the standard moisture content range, T represents the temperature of the placement environment in °C, RH represents the humidity of the placement environment, and t4 represents the fourth placement time in hours.

[0027] The present invention also discloses a moisture content control system for cigarettes during storage, used to execute a moisture content control method for cigarettes during storage, including:

[0028] The first detection unit identifies the brand of the cigarette.

[0029] Storage unit, used to store the maximum and minimum values ​​of the standard moisture content range corresponding to each grade;

[0030] The second detection unit is used to acquire the temperature value of the placement environment;

[0031] The third detection unit is used to obtain the humidity value of the placement environment;

[0032] The processing unit is electrically connected to the storage unit, the first detection unit, the second detection unit, and the third detection unit. The processing unit is used to receive the brand number output by the first detection unit, the temperature value output by the second detection unit, and the humidity value output by the third detection unit. Based on the brand number, the processing unit retrieves the maximum and minimum values ​​of the standard moisture content range corresponding to that brand number from the storage unit. Based on the temperature value, humidity value, and the maximum and minimum values ​​of the standard moisture content range, the processing unit calculates the maximum duration of the cigarette in the placement environment.

[0033] Optionally, it also includes:

[0034] A timer, electrically connected to the processing unit, is used to record the actual placement time of the cigarette in the placement environment and transmit the actual placement time to the processing unit so that the processing unit can compare the actual placement time with the limit time.

[0035] Optionally, it also includes:

[0036] The display unit is electrically connected to the processing unit and is used to display the current moisture content of the cigarette.

[0037] Optionally, the display unit includes three indicator lights, namely a green light, a yellow light, and a red light, wherein:

[0038] When the difference between the limit duration and the actual placement time is greater than 0.5 hours, the green light will remain on to indicate that the cigarettes can continue to be stored in the environment.

[0039] When the maximum storage time is greater than the actual storage time and the difference between the maximum storage time and the actual storage time is less than or equal to 0.5 hours, the yellow light will flash at a low frequency to indicate that the cigarette needs to be used as soon as possible.

[0040] When the maximum storage time is less than the actual storage time, the red light flashes at a high frequency to indicate that the cigarette needs to be tested for moisture content. It can only be used after the test is passed.

[0041] The present invention also discloses a computer-readable storage medium storing computer instructions that, when executed, enable a method for controlling the moisture content of cigarettes during storage. Attached Figure Description

[0042] Figure 1 A flowchart illustrating the method for controlling the moisture content of cigarettes during storage provided by the present invention is shown. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0044] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] The terms “first,” “second,” “third,” and “fourth,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0046] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0047] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, an embodiment of the present invention discloses a method for controlling the moisture content of cigarettes during storage, comprising:

[0049] Step S1: Determine the brand of the cigarette and obtain the standard moisture content range for that brand of cigarette;

[0050] Step S2: Obtain the temperature and humidity values ​​of the environment where the cigarettes are placed;

[0051] Step S3: Substitute the temperature value, humidity value, and the maximum value of the standard moisture content range into the first function and the third function respectively, and calculate the first placement time corresponding to the first function and the third placement time corresponding to the third function respectively.

[0052] Substitute the temperature value, humidity value, and minimum value of the standard moisture content range into the second function and the fourth function respectively, and calculate the second placement time corresponding to the second function and the fourth placement time corresponding to the fourth function respectively.

[0053] Step S4: Take the minimum positive value among the first placement time, the second placement time, the third placement time and the fourth placement time, and take the minimum positive value as the limit time of the cigarette in the placement environment. The limit time is the longest placement time of the cigarette in the placement environment with the moisture content within the standard moisture content range.

[0054] By adopting the above technical solution, the maximum duration of cigarettes in the storage environment can be obtained, which allows operators to package the cigarettes in a timely manner within the maximum duration, reducing the frequency of excessive moisture content in cigarettes, thereby reducing the number of re-inspections and reducing resource waste.

[0055] Optionally, it also includes:

[0056] The system obtains the actual duration of the cigarette in the environment and compares it with the limit duration. An alarm is triggered when the actual duration exceeds the limit duration.

[0057] Using the above technical solution, an alarm will be triggered when the actual placement time exceeds the limit, which can remind the packaging staff to conduct a manual re-inspection of the cigarettes in a timely manner, and choose whether to use them first or discard them based on the re-inspection results.

[0058] Optionally, the first function is:

[0059]

[0060] Among them, W max Let t1 be the maximum value of the standard moisture content range, T be the temperature of the storage environment (°C), RH be the humidity of the storage environment, and t1 be the first storage time (h). Using the first function, we can obtain the storage time (i.e., the first storage time) for a certain brand of cigarettes in an extreme environment of high temperature and low humidity where the moisture content is less than or equal to the maximum standard moisture content.

[0061] Alternatively, the second function is:

[0062]

[0063] Among them, W min Let t1 be the minimum value of the standard moisture content range, T be the temperature of the storage environment (°C), RH be the humidity of the storage environment, and t2 be the second storage time (h). Using the second function, the storage time (i.e., the second storage time) for a certain brand of cigarettes under extreme high temperature and low humidity conditions when the moisture content is greater than or equal to the minimum standard moisture content can be obtained.

[0064] Alternatively, the third function is:

[0065]

[0066] Among them, W max Let t3 be the maximum value of the standard moisture content range, T be the temperature of the storage environment (°C), RH be the humidity of the storage environment, and t3 be the third storage time (h). Using the third function, we can obtain the storage time (i.e., the third storage time) for a certain brand of cigarettes in an extreme environment of low temperature and high humidity where the moisture content is less than or equal to the maximum standard moisture content.

[0067] Alternatively, the fourth function is:

[0068]

[0069] Among them, W minLet t4 be the minimum value of the standard moisture content range, T be the temperature of the storage environment (°C), RH be the humidity of the storage environment, and t4 be the fourth storage time (h). Using the fourth function, the storage time (i.e., the fourth storage time) for a certain brand of cigarettes under extreme low temperature and high humidity conditions when the moisture content is greater than or equal to the minimum standard moisture content can be obtained.

[0070] Specifically, the first to fourth functions can be obtained using the following method:

[0071] In actual production, the workshop temperature ranges from 22-26℃, and the humidity ranges from 55-65%. Based on these temperature and humidity conditions, five placement environments are set up: the first placement environment has a temperature of 22℃ and a humidity of 65%; the second placement environment has a temperature of 23℃ and a humidity of 62.5%; the third placement environment has a temperature of 24℃ and a humidity of 60%; the fourth placement environment has a temperature of 25℃ and a humidity of 57.5%; and the fifth placement environment has a temperature of 26℃ and a humidity of 55%.

[0072] Five cigarettes with an actual moisture content equal to the maximum value of the standard moisture content range were collected and denoted as cigarette C. One cigarette C was placed in each of the first to fifth placement environments. The extreme duration of moisture content exceeding the standard for cigarette C in the first placement environment was recorded, yielding the first set of data for temperature, humidity, extreme duration, and maximum cigarette moisture content corresponding to the first placement environment. Similarly, the extreme duration of moisture content exceeding the standard for cigarette C in the second to fifth placement environments was recorded, yielding the second to fifth sets of data for temperature, humidity, extreme duration, and maximum cigarette moisture content corresponding to the second to fifth environments. By fitting these five sets of data for temperature, humidity, extreme duration, and maximum cigarette moisture content, the first derived formula was obtained:

[0073]

[0074] Where W is the actual moisture content, T is the temperature of the placement environment in °C, RH is the humidity of the placement environment, and t is the maximum duration in h.

[0075] Similarly, five cigarettes with actual moisture content equal to the minimum of the standard moisture content range were collected and denoted as cigarette D. One cigarette D was placed in each of the first to fifth placement environments, and the extreme duration of moisture content exceeding the standard for cigarette D in the first placement environment was recorded. This yielded the sixth set of data for temperature, humidity, extreme duration, and minimum moisture content corresponding to the first placement environment. Likewise, the extreme duration of moisture content exceeding the standard for cigarette D was recorded in the second to fifth placement environments, yielding the seventh to tenth sets of data for temperature, humidity, extreme duration, and minimum moisture content corresponding to the second to fifth placement environments. By fitting the data from the sixth to tenth sets of temperature, humidity, extreme duration, and minimum moisture content, the second derived formula was obtained:

[0076]

[0077] Where W is the actual moisture content, T is the temperature of the placement environment in °C, RH is the humidity of the placement environment, and t is the maximum duration in h.

[0078] When it is necessary to obtain the maximum storage time of a cigarette in the storage environment, simply substitute the actual moisture content of the cigarette, the temperature value and humidity value of the storage environment into the first derivation formula and the second derivation formula respectively, calculate the two maximum storage times corresponding to the two derivation formulas, and then take the minimum value between the two maximum storage times, which is the maximum storage time of the cigarette in the storage environment. However, when calculating the maximum duration of a cigarette in its storage environment using the first and second derivation formulas, the actual moisture content of the cigarette is unknown beforehand. What is certain, however, is that the actual moisture content of the cigarette when it is first produced is within the standard moisture content range. Therefore, the maximum and minimum values ​​of the standard moisture content range need to be substituted into the first and second derivation formulas, respectively. That is, the first derivation formula is split into a first function taking the maximum value of the standard moisture content range and a third function taking the minimum value. The second derivation formula is split into a second function taking the maximum value of the standard moisture content range and a fourth function taking the minimum value. Then, the first to fourth storage times are calculated using the first to fourth functions respectively. Finally, the minimum positive value among the first to fourth storage times is taken as the maximum duration of the cigarette in its storage environment.

[0079] To enable those skilled in the art to better understand this technical solution, two embodiments are provided below to illustrate the technical solution of the present invention in detail.

[0080] Example 1: The ambient temperature of the cigarettes was 22.9℃ and the humidity was 55.6%. Testing revealed that the cigarettes were brand A. According to the production process manual, the standard moisture content range for brand A cigarettes is [11.3, 12.3]. Therefore, the calculation steps for the maximum shelf life of brand A cigarettes under this storage environment are as follows:

[0081] That is, to Substituting into the first and third functional expressions respectively, we obtain t1 = -1.18h and t3 = -3.27h; Substituting these values ​​into the second and fourth functional expressions respectively, we obtain t2 = 5.54h and t4 = 2.53h. In t... 1、 t 2、 The minimum positive value of 2.53h between t3 and t4 is taken as the maximum storage time for Brand A cigarettes in this environment, i.e., the longest storage time for Brand A cigarettes to maintain a moisture content within the standard moisture content range in this environment. When the actual storage time of the cigarettes is less than or equal to 2.53h, it indicates that the actual moisture content of the cigarettes will not exceed the standard, and no manual re-inspection of the moisture content is required. When the actual storage time of the cigarettes is greater than 2.53h, it indicates that the moisture content of the cigarettes in this environment will exceed the standard, and these cigarettes cannot be directly sent to the packaging machine for packaging. The moisture content of these cigarettes needs to be re-inspected. If the re-inspection result shows that the moisture content exceeds the standard, they should be discarded. If the re-inspection result is within the standard moisture content range, these cigarettes need to be packaged immediately to prevent the excessive moisture content from affecting the quality of the cigarettes or even causing resource waste.

[0082] Example 2: The current ambient temperature is 25.7℃ and the humidity is 62.2%. The cigarette brand is identified as B. According to the production process manual, the standard moisture content range for B brand cigarettes is [11.7, 12.7]. Therefore, the calculation steps for the maximum storage time of B brand cigarettes under the specified environment are as follows:

[0083] That is, to Substituting these values ​​into the first and third functional expressions respectively, we obtain t1 = 5.01h and t3 = 7.79h. Substituting these values ​​into the second and fourth functional expressions respectively, we obtain t2 = -5.85h and t4 = -2.53h. In t... 1、 t 2、The minimum positive value of t3 and t4, 5.01h, represents the maximum storage time for this brand of cigarettes. If the actual storage time is less than or equal to 5.01h, the actual moisture content of the cigarettes will not exceed the standard, and manual re-inspection of the moisture content is unnecessary. If the actual storage time exceeds 5.01h, these cigarettes cannot be directly sent to the packaging machine for packaging; a moisture content re-inspection is required. If the re-inspection shows that the moisture content exceeds the standard, the cigarettes should be discarded. If the re-inspection result is within the standard moisture content range, these cigarettes must be packaged immediately to prevent excessive moisture content from affecting the quality of the cigarettes or even causing resource waste.

[0084] The method for controlling the moisture content of cigarettes during storage provided by this invention can predict the maximum storage time of a cigarette brand in its storage environment based on the brand and the temperature and humidity values ​​of the environment in which it is stored. This guides the packaging process to prioritize packaging cigarettes whose actual storage time is close to the maximum storage time, thereby reducing the possibility of the moisture content of the batch of cigarettes exceeding the standard, thus reducing the number of re-inspections and reducing resource waste.

[0085] The present invention also discloses a moisture content control system for cigarettes during storage, used to perform the following processing:

[0086] Step S1: Determine the brand of the cigarette and obtain the standard moisture content range for that brand of cigarette;

[0087] Step S2: Obtain the temperature and humidity values ​​of the environment where the cigarettes are placed;

[0088] Step S3: Substitute the temperature value, humidity value, and the maximum value of the standard moisture content range into the first function and the third function respectively, and calculate the first placement time corresponding to the first function and the third placement time corresponding to the third function respectively.

[0089] Substitute the temperature value, humidity value, and minimum value of the standard moisture content range into the second function and the fourth function respectively, and calculate the second placement time corresponding to the second function and the fourth placement time corresponding to the fourth function respectively.

[0090] Step S4: Take the minimum positive value among the first placement time, the second placement time, the third placement time, and the fourth placement time, and take this minimum positive value as the limit of the cigarette's placement time in the environment.

[0091] The aforementioned system includes:

[0092] The first detection unit identifies the brand of the cigarette.

[0093] Storage unit, used to store the maximum and minimum values ​​of the standard moisture content range corresponding to each grade;

[0094] The second detection unit is used to acquire the temperature value of the placement environment;

[0095] The third detection unit is used to obtain the humidity value of the placement environment;

[0096] The processing unit is electrically connected to the storage unit, the first detection unit, the second detection unit, and the third detection unit. The processing unit is used to receive the brand number output by the first detection unit, the temperature value output by the second detection unit, and the humidity value output by the third detection unit. Based on the brand number, the processing unit retrieves the maximum and minimum values ​​of the standard moisture content range corresponding to that brand number from the storage unit. Based on the temperature value, humidity value, and the maximum and minimum values ​​of the standard moisture content range, the processing unit calculates the maximum duration of the cigarette in the placement environment.

[0097] Optionally, it also includes:

[0098] A timer, electrically connected to the processing unit, records the actual placement time of the cigarettes in the storage environment and transmits this actual placement time to the processing unit so that the processing unit can compare the actual placement time with the limit time. Specifically, the timer starts when the cigarettes are transported from the cigarette rolling machine to the workshop for storage.

[0099] Optionally, it also includes:

[0100] The display unit is electrically connected to the processing unit. The display unit is used to display the current moisture content of the cigarettes. Staff can learn about the current moisture content of the cigarettes by viewing the display unit.

[0101] Optionally, the display unit includes three indicator lights, namely a green light, a yellow light, and a red light, wherein:

[0102] When the difference between the limit time and the actual placement time is greater than 0.5 hours, the green light will remain on to indicate that the cigarettes can continue to be stored in the placement environment. Once the packaging machine starts working, there is no need to prioritize packaging these cigarettes.

[0103] When the maximum storage time is greater than the actual storage time and the difference between the maximum storage time and the actual storage time is less than or equal to 0.5 hours, the yellow light will flash at a low frequency to indicate that the cigarettes need to be used as soon as possible within 0.5 hours. For safety reasons, these cigarettes should be quickly transported to the packaging machine for packaging to prevent the moisture content of the cigarettes from exceeding the standard and affecting the quality of the cigarettes.

[0104] When the specified time limit is less than the actual storage time, a red light flashes at a high frequency and is accompanied by a buzzer, indicating that the cigarettes need to undergo moisture content testing. This means staff must immediately sample these cigarettes to determine if the moisture content exceeds the standard. If it does, the cigarettes must be discarded; if not, they must be packaged as soon as possible. Only cigarettes that pass the moisture content test can be used.

[0105] Taking the aforementioned Example 2 as an example, the maximum storage time for brand B cigarettes in an environment with a temperature of 25.7℃ and a humidity of 62.2% is 5.01 hours. When the timer shows an actual storage time of 0.5 hours, meaning the difference between the maximum storage time and the actual storage time is greater than 0.5 hours, the green light remains on, indicating that these cigarettes do not need to be prioritized for processing and can continue to be stored in the workshop. When the timer shows an actual storage time of 4.35 hours, meaning the maximum storage time is greater than the actual storage time and the difference between the maximum storage time and the actual storage time is less than 0.5 hours, the green light remains on, indicating that these cigarettes do not need to be prioritized for processing and can continue to be stored in the workshop. When the timer shows an actual storage time of 0.5 hours, the yellow light flashes at a low frequency. The cigarettes in this section should be quickly transported to the packaging machine for packaging to prevent excessive moisture content from affecting the quality of the cigarettes. When the timer shows an actual storage time of 5.02 hours (meaning the maximum storage time is less than the actual storage time), the red light flashes at a high frequency and is accompanied by a buzzer. At this point, staff need to immediately conduct a random inspection of these cigarettes to determine if the moisture content exceeds the standard. If it does, the cigarettes need to be discarded; if not, they need to be packaged as soon as possible.

[0106] Embodiments of the present invention also disclose a computer-readable storage medium storing computer instructions, which, when executed, perform the following processing:

[0107] Step S11: Determine the brand of the cigarette and obtain the standard moisture content range for that brand of cigarette;

[0108] Step S12: Obtain the temperature and humidity values ​​of the placement environment;

[0109] Step S13: Substitute the temperature value, humidity value, and the maximum value of the standard moisture content range into the first function and the third function respectively, and calculate the first placement time corresponding to the first function and the third placement time corresponding to the third function respectively.

[0110] Substitute the temperature value, humidity value, and minimum value of the standard moisture content range into the second function and the fourth function respectively, and calculate the second placement time corresponding to the second function and the fourth placement time corresponding to the fourth function respectively.

[0111] Step S14: Take the minimum positive value among the first placement time, the second placement time, the third placement time, and the fourth placement time, and take this minimum positive value as the limit of the cigarette's placement time in the environment.

[0112] When the computer instructions are executed by the processing unit, they implement the various processes of the above-described method embodiment for controlling the moisture content of cigarettes during storage, and achieve the same technical effect. To avoid repetition, the detailed processes will not be described again here. The computer storage medium mentioned includes, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0113] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A method for controlling the moisture content of cigarettes during storage, characterized in that, include: Determine the brand of the cigarette and obtain the standard moisture content range for that brand of cigarette; Obtain the temperature and humidity values ​​of the environment where the cigarettes are stored; Substitute the temperature value, the humidity value, and the maximum value of the standard moisture content range into the first function and the third function respectively, and calculate the first placement time corresponding to the first function and the third placement time corresponding to the third function respectively; Substitute the temperature value, the humidity value, and the minimum value of the standard moisture content range into the second function and the fourth function respectively, and calculate the second placement time corresponding to the second function and the fourth placement time corresponding to the fourth function respectively; Take the minimum positive value among the first placement time, the second placement time, the third placement time, and the fourth placement time, and use the minimum positive value as the limit duration of the cigarette in the placement environment; The actual placement time of the cigarette in the environment is obtained, and the actual placement time is compared with the limit time. When the actual placement time exceeds the limit time, an alarm is triggered. The first functional expression is: Among them, W max The maximum value of the standard moisture content range, T is the temperature value of the placement environment in °C, RH is the humidity value of the placement environment, and t1 is the first placement time in h; The second function is: Among them, W min t1 is the minimum value of the standard moisture content range, T is the temperature value of the placement environment in °C, RH is the humidity value of the placement environment, and t2 is the second placement time in h. The third functional expression is: Among them, W max The maximum value of the standard moisture content range, T is the temperature value of the placement environment in °C, RH is the humidity value of the placement environment, and t3 is the third placement time in h; The fourth function is: Among them, W min t4 is the minimum value of the standard moisture content range, T is the temperature value of the placement environment in °C, RH is the humidity value of the placement environment, and t4 is the fourth placement time in hours.

2. A moisture content control system for cigarettes during storage, used to execute the method as described in any one of claims 1, characterized in that, include: The first detection unit is used to identify the brand of the cigarette; A storage unit is used to store the maximum and minimum values ​​of the standard moisture content range corresponding to each of the grades; The second detection unit is used to acquire the temperature value of the placement environment; The third detection unit is used to obtain the humidity value of the placement environment; The processing unit is electrically connected to the storage unit, the first detection unit, the second detection unit, and the third detection unit, respectively. The processing unit is used to receive the brand name output by the first detection unit, the temperature value output by the second detection unit, and the humidity value output by the third detection unit, and to retrieve the maximum and minimum values ​​of the standard moisture content range corresponding to the brand name from the storage unit, and to calculate the limit duration of the cigarette in the placement environment based on the temperature value, the humidity value, and the maximum and minimum values ​​of the standard moisture content range.

3. The moisture content control system for cigarette storage as described in claim 2, characterized in that, Also includes: A timer, electrically connected to the processing unit, is used to record the actual placement time of the cigarette in the placement environment and transmit the actual placement time to the processing unit so that the processing unit can compare the actual placement time with the limit time.

4. The moisture content control system for cigarette storage as described in claim 3, characterized in that, Also includes: The display unit is electrically connected to the processing unit and is used to display the current moisture content of the cigarette.

5. The moisture content control system for cigarette storage as described in claim 4, characterized in that, The display unit includes three indicator lights, which are green, yellow, and red, respectively: When the difference between the limit duration and the actual placement duration is greater than 0.5 hours, the green light remains on to indicate that the cigarette can continue to be stored in the placement environment. When the maximum time exceeds the actual time of placement and the difference between the maximum time and the actual time of placement is less than or equal to 0.5 hours, the yellow light flashes at a low frequency to indicate that the cigarette needs to be used as soon as possible. When the specified limit duration is less than the actual placement time, the red light flashes at a high frequency to indicate that the cigarette needs to undergo a moisture content test, and it can only be used after passing the test.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed, enable the implementation of the method as described in claim 1.

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